This parameter sets the draw style for the table. You can set it to a list of array references, or to a style name.

If you pass it a list, it can have 5, 6, or 8 elements. The first 6 elements are interpreted in the same way as the parameters of Text::ASCIITable::draw (see "Custom tables" in Text::ASCIITable). The last two, which default to 0, are the number of columns to remove on the left- and right-hand side of the generated table; this is used to have tables without vertical borders.